The result of Reagan’s intent, as interpreted by the board, was to cast a new chill on current-affairs broadcasting and place PBS more in the hands of corporate sponsorship than it had been before. Corporate underwriters on the whole refused to write cheques for current-affairs material, preferring reliable, non-controversial shows like Masterpiece Theater, or that inexhaustible genre of nature films, electronic wallpaper for the ecologically concerned, known to sceptics in the trade as “bugs fucking to Mozart”. There was no way of injecting much liberal “bias” into those, since Nature is, from a conservative standpoint, irreproachably competitive in behaviour.
Page 144 of Robert Hughes’ “The Culture of Complaint”

Which reminds me of this quote from the late Julian Rathbone’s eco-thriller “Zdt”